Dietary and inhalation exposure to polycyclic aromatic hydrocarbons and urinary excretion of monohydroxy metabolites - A controlled case study in Beijing, China

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• 作者：Yanyan Zhang ; Junnan Ding ; Guofeng Shen ; Junjun Zhong ; Chen Wang ; Siye Wei ; Chaoqi Chen ; Yuanchen Chen ; Yan Lu ; Huizhong Shen ; Wei Li ; Ye Huang ; Han Chen ; Shu Su ; Nan Lin ; Xilong Wang ; Wenxin Liu ; Shu Tao
• 关键词：Polycyclic aromatic hydrocarbons ; Dietary exposure ; Urinary excretion ; Biomarkers
• 刊名：Environmental Pollution
• 出版年：January, 2014
• 年：2014
• 卷：184
• 期：Complete
• 页码：515-522
• 全文大小：749 K

文摘

Daily dietary and inhalation exposures to 16 parent polycyclic aromatic hydrocarbons (PAHs) and urinary excretion of 13 monohydroxy metabolites (OHPAHs) were monitored for 12 non-smoking university students in Beijing, China, during a controlled feeding experiment. The relationship between the urinary excretion of OHPAHs and the uptake of PAHs was investigated. The results suggest severe exposure of the subjects to PAHs via both dietary and inhalation pathways. Large increase of most urinary OHPAHs occurred after the ingestion of lamb kabob. Higher concentrations of OHPAHs were observed for female subjects, with the intakes of parent PAHs lower than those by males, likely due to the gender differences in metabolism. It appears that besides 1-PYR, metabolites of PHE could also be used as biomarkers to indicate the short-term dietary exposure to PAHs and urinary 3-BaA may serve as the biomarker for inhalation intake of high molecular weight PAHs.